Rotary actuator arrangement and method of manufacture

Details Rotary actuator arrangement and method of manufacture Rotary actuator arrangement and method of manufacture

1996-11-26

1998-10-06

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 555

Patent

active

058186654

ABSTRACT:
A head disk assembly for a disk drive comprises a base, a bearing cartridge, a head stack assembly, and an elongated member. The bearing cartridge includes an inner shaft and an outer sleeve, the shaft being attached to the base and defining a pivot axis and the outer sleeve being rotatable relative to the pivot axis. The outer sleeve has a cylindrical sleeve surface. The head stack assembly includes an actuator body. The actuator body has a bore and a slot located adjacent to the bore such that the slot opens into the bore. The bore has a bore surface that defines a pair of ridges extending parallel to the length of the bore. The bearing cartridge is disposed within the bore. The elongated member is more compliant than the bore surface and more compliant than the sleeve surface, and is disposed in the slot and is compressed to provide a reacting force along a first contact line parallel to the pivot axis to bias the sleeve surface against the ridges to provide second and third contact lines each parallel to the pivot axis.

REFERENCES:
patent: 5056078 (1991-10-01), Carey et al.
patent: 5146450 (1992-09-01), Brooks et al.
patent: 5235481 (1993-08-01), Kamo et al.
patent: 5265325 (1993-11-01), Fortin
patent: 5293282 (1994-03-01), Squiires et al.
patent: 5404636 (1995-04-01), Stefansky et al.
patent: 5502604 (1996-03-01), Furay
patent: 5513055 (1996-04-01), McGrath
patent: 5627702 (1997-05-01), Kelemen et al.

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